Gurmal

I have an original 1982 280zx 2+2 the rear end out of it is 38311 N3100. just for reference I see many posts on this number and wanted to give you all a reference of what year car it came out of. My son is using the engine tranny and rearend for his 240z project. I hope this helps google on a website and it said 280zx 81-83 (3.9) (r200)

I have the same rear-end for my 240z. I bought 1982 280zx 2+2 unmolested and that was the original rear end out of it.